Cooking stove



Jan. 1, 1

T E. PERKs Er AL COOKING STOVE Filed Ndv. 27, 1933 2 Sheets-Sheet l Jan. 1,1935. T E PERKS ETAL 1,986,524

COOKING STOVE Filed Nov. 27, 1933 2 SheetS-Sheet 2 CEGSS Patented Jan. 1p, 1935 A t ThisLinvcntionrelates@to a cooknefstove oomplates or the lil ;eup'on1wliich thejarticles'to be cooked are l arranged. to Mbo supported, and has for its `principal objootktoiprovid an improved stove .of this, kindwfor cooking y articles o f food, Such, for instance, `as ,parloakeswhioh ,reduire tot-be tossed, ,turned 1or4 y movedvwith irespectytd the cookinerlotos orosodisposod withrespect-v OOH@ 9110131161 all@ alllalged .QzlbQ @Filiali/Cillin any suitable-manner that the :articles being cooked thereon are transferred lfrom plate to plateinf which case the platesjmay-be maintained at, dierent temperatures so that I an c article after t being cooked on lone Eplateat yonetemperature fcragpredetermined time-may be transferred to a `plate maintained at `a differentmetemperature and cooked on that plate for apfurther period ofV time.` t l if v `Infacc'ordaricewith one Vformo t he as applied to a stove more partcularlyLJsuitableL for ytossing pancakes and the.,like, the cooking V plates Va'reniounted uponV rotary ysha'ftsjprferoperation.

` Jected downwardly upon thearticle being cocked ably in Suoh l a meneer .that th. foiroiolzl otros l thereof oro Solistontiollriethe` planesofthe; lower surfaces ,ofthe plates, and arearranged to be successivelyoperated@ ninechanicallyeor means of electro-rmagnetslso suctqltoss the` arti-.I

clef successively from plate plate, such Aa manner asto reverse the vart, n

In accordance V.featurepof the r exhibition.purposes the stovemay be incorpore ratedM in a suitable attractive;-cabinebpreferably comprising-an oven through which Votherjarticles of food maybe arranged to \pass,` Whilegbeing cooked, on trays carried vbymatravelirlg chain `er` chains, these articles being visible,during;;thei cooking process,` throlligh4 a Window provided the front of the oven.` Aglazedinternally ,illaminated compartment or,` l compartmentsrmay valso be provided-in the cabinet-fin which mayjbe l exhibitedl--the ingredients used in :the-:making of passer-bm about toifbooporatod;

" l riverition invention `radiant Yhe'atfis arranged: to be` pro-- the articles `*being `cooked, and .a ,glazed internallyilluminatedcompartment orccomp'artments suitably heatedyif gdesired, `in which vthe cooked articles, themselves may be y displayed, and in accordance A-witha v'still lfurther feature ofqthe in-` volition arrangements mayfbe .provided-fortwhdrawing the pleasing odor loflcooking from the stoven-pand suitably -distributing .this pleasing odorsin order to attract theattention` `of `the In accordance" with Ear-,still further feature 4of the invention an illummatedzor `otherindicating devcegmay belocated above eachycooking plate, these devices `being Vfarralle'd to indicate the ,directiongin which the plate `located :belolw will throw-the article, or-to 4indicate automatically the `parti'cular Vplatekor plates `which is` `or are r -In -ordergthat the invention may. belreadily understogd it Qwi'll now :be described by Way `of example, with preference Vto'the accompanying drawines-.inwhohr Figure 1 isa frontview of `the apparatuslas a Wholerrp y [Figure 2 fis a partlydiagrammatic view showing; electrically operated mechanismfor actuating the cooking platea-.fand r Y Figure A3 uis `a `:perspective View, f taken `from the rear of fthe apparatus, of ,mechanical actuating arrangemen'tsfor thellcooking plates. r l

Referringrst'toxgure l; the stoveis in'cor` pofatedin a .cabinet 1', for"s'hopwindow exhibitionpurposesthis cabinet-being provided with a heated "compartment for receiving the cooked articles Ato :which A access A-is' obtained through a door-G2 providedwith a glass-panel for inspection purposes? `The cabinetalso comprises anp-oven be obtained through a;Y door 3 atene end anda door eat'thelpthe end,` a glassfpaneljS between these "two doorsV permitting `inspection of the,

articles being cookedxinjfthe ovenl t ""'Ihejm 'king p1ates 67, A8, 9' and 10 anda" plate`1 1,`,sin iilar Ito thef said plates, .but serving as a .lidx forrthe compartmentatithe -right hand end of the cabinet, are arranged. adjacentfcne t another fina straight rcwjfrom thelleft hand to the righthand sideof thestove, each plate'beingA mounted upon a rotarvshoftfm .at its right bandside "and adapted to 4be heated by-means,of la heatinglelement.orfelementslocatedibelow. e

-,lil-xtendin, iipvvalfdly from thelrear of the: cabinet 1 is a shield 13 adapted" toreceive at 14- an advertising-device `and carrying a-number of Aat the lower portion thereunto which accessmay t air pump yfromnvvhiclr the` odor-laden air lis: dee" livered fby :a `-further l pipe or pipes, suitably: conthe article or permit the article to be thrownas f the case may be. n n A The hood 16 contains a heating device adapted to project a beam of radiant heat upon the-*upper surface of an article cookingupon the plate A6.`

As shown in Figure 2, upon each rotary shaft 12 ,of the plates 6-11 is mounted a semi-circulan plate 23, each shaft extending through 'the semicircular plate mounted thereon substantially at;

the centre of the straight base of the said plate. Below each cookingl plate and preferably at the rearl of the stove is mounted an electro-magnet 24, the movable armature of which is coupled tothe semi-circular plate 23 on the shaft 12 of the corresponding cooking vplate through the intermediary of a chainfor otheriflexible element 26 secured-at one end to' the armaturev and at the other fend. kto the semi-circular plate, to the periphery of'which the chain or other flexible element is applied, it being understood lthat the chain or other exible element issecured to the semiecircular'plate at the point 27 of the latter.

' While the articles'are being cooked on the plates the latter are arranged to be maintained in their horizontal positions by the action of gravity .or by means of springs, and when `the electro-magnet associated with a cooking plate is energized, the latter 1s rotated rapidly in a clockwise direction, through'the intermediary of the corresponding :chain vorother flexible element 26 and semi-circular plate'23 mountedupon the shaft 12 carrying the cookingplata-so'as to toss the article being cookedon the plate over the shaft l2 on to the next plate whichr receives it the` reverse way up.v Eachgrcooking `plate .is arranged to be rotated in.an.anticlockwise direction to its horizontal .or cooking position by the,I action of rgravity or by means of a spring as soon as theelectrofmagnet 24:V associated with the plate is deenergized` In order to limit theV move-` mentofthe armature of the electro-magnet consequent upon, energizing and `deenergizingA the latter suitable stops 28 may be provided which maydalso serve as buiers and be adjustable as to position, and itl-may here be stated that the plates may be arrangedtobe rotated throughan angle of approximatelyl 1,20 degeesto eectthe tossing operation.A

75 so asy rapidly to raise the plateto the .position in nfean'sof an electric motormr' otherwise wis* provided for controlling the operation of the electromagneta'this switch' being adapted to complete the energizing circuits of the seriesof kelectro-l magnets in succession from right to` left so that the cooking plates are operated in succession 'and the article thus tossed from plate to plate until it arrives atthe plate 10 which is arranged to toss the article into the heated compartment provided with the Idoor 2. lThiscompartment is* provided cooking plates 6-10 vbut arranged to be operated by the rotary switch prior to'theoperation of the last plate to toss or throw ther` article Yinto the heated compartment. f v f;

' l In operation, the arm 30 of the switch 29 is arranged to b'erotated in an anti-clockwise directionV by means of an electric motor or otherwise and when-it engages with contact 31, the electromagnet 24 associated with the plate llis actuated rotary 29,*iwhich may beoperatedfby which it is illustrated. As soon as the arm of the switch 29 engages with the contact 32, whilst still engaging with the contact 31, the cooking plate 10 is rapidly actuatedso as to assume a position similar to that of the plate 11 whilst throwing the article cooking on the plate l0 through the vaperture uncovered by the plate 11 intoy the heated compartment provided with the door 2. The arm 30 of the switch 29 now leaves both contacts 31 and 32 with the result that both of the Vplates reassume their horizontal positions under the action of gravity and as soon as the arm 30 engages with the contact'33 the plate 9 is similarly actuated so as to throw the article cooking thereon on to the plate 10 whilst reversing said article.

The other plates 8, 7 and 6 are Yactuated* in a similar 'manner as soon as the arm 30 engages with the contacts 34, 35 and 36 respectively.

The speed of the motor driving the switch may be varied as -desired to suit diierent articles of food, but for pancakes it has been found suitable toarrange for thefarm 30 to take l0 seconds to travel from contact 31 to contact 36 and 30 sec-V onds to travel -from contact 36 to contact 31.

Thus the pancakes are cooked for approximatelyV 30 seconds on each plate and the tossing operation or transference from plate to plate whilst reversing the articles'takes 10 seconds. material, which mayconsist, as in the case of pancakes, of a'semi-liquid batter, should be placed on the plate 6 directly the latter has been actuated so as to toss the article cooking thereon on to the plate `7,a nd the top surface of the-raw material on the plate 6 is sealed or semi-cooked by the radiantvheat projected downwardly upon it from Vthe heating device referred to hereinbefore as located in the hood 16. f

It will be evident that by suitably arranging the contact's31-36 of the rotary switch the inter- I vals` of time during which any individual cooking plateremains in the cooking position may be adjusted as desired. Moreover by adjusting the speed of the electric or other motor rotating the switch the period of time required to complete the whole series of tossing operations may be Varied as desired. n

It may here be mentioned that it is preferable to arrangefor the rst cooking plate, namely the plate k6, to be heated to a higher temperature than the last plate, vthe temperatures of the plates 6-10 -being'arranged to decrease from left to right.

The temperatures of the individual plates may be arranged to be controlled by suitable rheostat devices 37 associated with the heating elements located below the plates.

Anilluminated or other indicating device may be located above each cooking plate and above the cover of the heatedv compartment reierred'to hereinbefore, these devices being arranged tov be automatically illuminated or operated to indicate the particular plate or plates which is or arel about to be operated, suitable contacts being'provided for this purpose in the rotary switch hereinbefore referred to or a preliminary movement of the electro-magnet of the corresponding plate being utilized to this end."

If desired provision may be made for-adjusting the position of the pivotal axes with respect to the plane of the tops of the -plates so as to enable the nature and the extent of the movement imparted to the article to be adjusted as desired to suit particular requirements.

' When the articles being cooked are made fromA a batter or the like, the batter may be fed to the frst'cooking plate 6 by hand' or by any suitable The raw lo; l. 11 slifldesiredthefmovernont ofthe :cooking plates whence-fleeting thetossing or turningvoneration upon ftheucookingp12,te;;.fthespreading of the :batterloyer `the mlate may moreoyer befarranged ,to

'oe limited byproviding :a suitably lheated `metallic or `rather ring `tofbe :placed on thefplate .and into which the batter is `arranged to lbeipoiwedl. :,this rmgzbeing ,removedbeforethe .nrst .tossing or tunning` operation isefiected. y i v mayibentltlizedautomatically togreaseithe plates.`

azsmall quantity of icoolsing oil being arranged i to i l be released iffroma suitablereservoirf'when -the plate is operated by the mechanism `iliereinbefore dcsonbed. iTiurthermore.the-invention :isalso ani nlicable Ato :stones for .cooking 4articles ,in oil.` the cooking @plates tease being `the form of grids and f :slightly .immersed `in fan Q11 heated ant'xsuitablefmaner. i

f:falce oven flocat fthe .lower portion of fthe cabinet may heated 7,electricalla and comprise `trarelingfchainsadapmdt .cooneratewthrmovff able trays on which other articles may be cooked which :do mot require tossing @or turning. The trays .when loaded `with ,raw `material are placed in the oven through the door 3 and carried through the latter on the traveling chains so as to cook the loads on the trays which can then be removed through the door 4. The ltemperature of the oven may be indicated on a thermometer 38 and controlled by means of rheostat devices 39. q

The electro-magnetic arrangements for operating `the plates described hereinbefore with reference to Figure 2 may be replaced by any other suitable arrangements; for instance the plates may be operated by mechanical means as illustrated in Figure 3. i

Referring now to Figure-3 which is aperspective view, taken from the rear of theapparatus, of mechanical actuating arrangements for the cooking plates, each plate is as before carried by a shaft 12 which has secured theretoa quadrant 40 and a counterweight 41 for the plate. The shaft 12 also carries an arm 42. The quadrant 40 is locked in the position in which it is illustrated by a hooked member 43 carried by an arm 44 'pivotally `mountedon a fixed frame member a 45, this hooked member engaging under a flange j 46 Aon the quadrant under the action of a f spring 47.

Each plate has similar mechanism associated therewith and is operated in a/similar manner will now be described, although some reference must be made to the operation of the mechanisms associated with the two plates 10 and 1'1 inasmuch as `there is provided an interlocking device between ,thesetwo mechanisms only in orderto ensure that the plate ll'shall remain raised while the plate 10 is` operated to toss the article from 48 travelling from left to right first comes into-` contact With the arm 44 and moving it in an anti-clockwise direction unlocks the quadrant 40 by removing the hooked member 43 from under `the iiange 46. The bar then engages` with the under the ,action of gravity so` as to reassume their initial @positions in which the plates Varehorizoni tal. fln'ithe case vof the `plate '11,showever, alrecessedjlever member 53 is `pivotally mounted son the xxedgf-rame member 45 and is engaged :byzarm 4;2uwhich `swings'nnder the impact` of, -bar 148.: Consequently, the plate ll remains in zits raised position until afterthe bar .48 has engaged with the arms 44 and 42 Aof the mechanism associated with the plate V10and `caused the latteryto Vbe, operated. After engaging with these a-rms 44 and42 the bar 48 engages with `a lever ,54fwhich1 is 'coupled to the lever 53 by a `member 55 and pivotally mounted `on l-the fixed frame member 45, thus moving the recessed levermember 53 in .an anti-,clockwise direction, vso that the arm 42 associated xwiththe platel-l is released-from the recess :A56 in the -lever Vmember 53 and Lthe said arm .and its associated quadrant, shaft 12 Aand plate 11 reassume their initial positions under the action of gravity.

The stop `may be arranged to travel from the ffirst arm 44l associated with plate 11 to the last arm 44 associated with plate 6 in 10 seconds and to return to the iirst arm 44 associated with plate 11 afteranother 30 seconds, the chains being carried over a number of rollers to ensure this latter interval of time being obtained.

The counterweights and/or arms 42 may be arranged to be adjustable upon the shafts l2 so as to render possible the adjustment and variation of the movement of the plates as a consequence of the impact of the bar 48 with the arms 42.

It willy be evident that the invention is not limited to the particular construction and arrangement of the parts hereinbefore described which may be varied as desired to suit particular requirements without exceeding the scope of the invention.

Having now- `described our invention, what We claim as new and desire to secure by Letters Patent is:

`imparting sudden rotary impulses to said plates in succession to toss the articles cooking on said 4 i plates freely through the air from plate to plate and therefore the operation of* one plate alone whilst reversing said articles.

2."In a cooking stove, a plurality of rotatable cooking plates maintained at different temperatures, and means for imparting sudden rotary impulses to said plates in succession to toss the articles cooking on said plates freely through the air from plate to `plate whilst reversing said articles. v f

3. In a cooking stove, the combination with a plurality of cooking plates, of rotary shafts for said plates,` semi-circular plates mounted on said shafts, a plurality of electro-magnets, flexible means secured to and bearing on the circumferences of said semi-circular plates and secured to the movable armatures of said electro-magnets, and means for energizing said electro-magnets successively to impart successively sudden rotary impulses to the cooking plates.

4. In acooking stove, the combination with a plurality of cooking plates, of rotary shafts for said plates,s'emicrcular plates mounted n said shafts, a plurality of electro-magnets, flexible means secured to and bearing on the circumferences of `said semi-circular plates and secured to the movable armatures of said' electro-magnets, a compartment for receiving the cooked articles, a

lid-'for .said compartment', an electro-magnet' coupled to said lid, and rotary switch means ffor energizing said! electro-magnets successivelyto impart vsuccessively sudden rotary impulsesy-toV the cooking plates and for holding; the electro# plurality kof rotatable cooking plates, of rotaryshafts for said plates, arms on said shafts, quadrants on said shafts, latching means cooperating With said quadrants and continuouslyA and rapidly Ytravelling means impacting succes. sively with `said latching means and said-armste unlatchthe platesand impart successively sud` den rotary impulses to said plates to project theY articles thereon freely-through the air fromplateto plate Whilst'reversing the articles. l j

7.7In a lcooking stove, the combinationv with a plurality lof ,cooking pla,tes"v;afv rotary shafts for said plates, counterweights for the cooking plates mounted on said rotary=-shafts, arms onV said shafts, and continuouslyv and rapidlyV travelling means impacting -successively With said arms to' impart successively sudden rotary impulses' to saidfplates lto project 'the articles thereon 'freely through the air f from versing said articles.

8. In a cooking stove, the combination with aplurality of rotatable cooking plates, of means for imparting sudden rotary impulses tosaid platesl inl succession to toss thearticles cooking on said plates freely through the air from plate to 'plate Whilst `reversing said'articles and meansfor projecting radiant heat downwardly uponthe articles being cooked prior. tothe first tossing operation."

l vTHOMAS EDGAR PER-Ks Y Y CHARLES ams/ARD`A1aoss-v plate to plate Whilst fre- 

